1. Observational study of behavior: Sampling methods;Altmann;Beh,1974
2. Equine Social Behavior;Beaver;Equine Behavioral Medicine,2019
3. African origins of the domestic donkey;Beja-Pereira;Sci,2004
4. Anatomical differences of the donkey and mule In: Proceedings of the Annual Convention of the American Association of Equine Practitioners;Burnham;AAEP,2002
5. Donkeys are different;Burden;J. Equine. Vet. Sci.,2015